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(a + b)^2 Expansion and Visualisation

Using quadrat...

Question

Using quadratic formula, solve $x^{2} + 5 x + 5 = 0.$

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Solution

$x^{2} + 5 x + 5 = 0$
$x = \frac{- b \pm \sqrt{b^{2} - 4 a c}}{2 a}$
$x = \frac{- 5 \pm \sqrt{25 - 4 (5)}}{2}$
$x = \frac{- 5 \pm \sqrt{5}}{2}$ .

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